This directory contains Factor code that is not part of the core
library, but is useful enough to ship with the Factor distribution.

- contrib/aim/ -- AOL Instant Messenger client library (Doug Coleman)

- contrib/algebra/ -- infix math syntax (Daniel Ehrenberg)

- contrib/concurrency/ -- Erlang/Termite-style concurrency (Chris Double)

- contrib/cont-responder/ -- additional examples and tools for the
  continuation-based web framework (Chris Double)
  
- contrib/crypto/ -- MD5 and SHA1 cryptographic hashes (Doug Coleman)

- contrib/parser-combinators/ -- Lazy lists and Haskell-style parser
  combinators (Chris Double)

- contrib/postgresql/ -- PostgreSQL binding (Doug Coleman)

- contrib/space-invaders/ -- Intel 8080-based Space Invaders arcade
  machine emulator (Chris Double)

- contrib/sqlite/ -- SQLite binding (Chris Double)

- contrib/coroutines.factor -- coroutines (Chris Double)

- contrib/dlists.factor -- double-linked-lists (Mackenzie Straight)

- contrib/xml.factor -- XML parser and writer (Daniel Ehrenberg)

- contrib/cairo/ -- cairo bindings (Sampo Vuori)